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Finding the Fourth Proportional to 249,960,643.80, 349,083,966.90 and 249,960,643.80

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Solution

The fourth proportional to 249,960,643.80, 349,083,966.90 and 249,960,643.80 is: 349,083,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,960,643.80 : 349,083,966.90 = 249,960,643.80 : x
  2. Step 2: Convert to fraction form
    249,960,643.80/349,083,966.90 = 249,960,643.80/x
  3. Step 3: Cross multiply
    249,960,643.80x = 349,083,966.90 × 249,960,643.80
  4. Step 4: Simplify right side
    249,960,643.80x = 87,257,253,106,581,888
  5. Step 5: Solve for x
    x = 87,257,253,106,581,888/249,960,643.80
  6. Step 6: Final answer
    x = 349,083,966.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.