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Finding the Fourth Proportional to 249,984,133.20, 349,171,570.80 and 249,984,133.20

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Solution

The fourth proportional to 249,984,133.20, 349,171,570.80 and 249,984,133.20 is: 349,171,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,984,133.20 : 349,171,570.80 = 249,984,133.20 : x
  2. Step 2: Convert to fraction form
    249,984,133.20/349,171,570.80 = 249,984,133.20/x
  3. Step 3: Cross multiply
    249,984,133.20x = 349,171,570.80 × 249,984,133.20
  4. Step 4: Simplify right side
    249,984,133.20x = 87,287,352,464,520,432
  5. Step 5: Solve for x
    x = 87,287,352,464,520,432/249,984,133.20
  6. Step 6: Final answer
    x = 349,171,570.80

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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.