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Finding the Fourth Proportional to 249,161.40, 373,801.59 and 80,681.91

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Solution

The fourth proportional to 249,161.40, 373,801.59 and 80,681.91 is: 121,042.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,161.40 : 373,801.59 = 80,681.91 : x
  2. Step 2: Convert to fraction form
    249,161.40/373,801.59 = 80,681.91/x
  3. Step 3: Cross multiply
    249,161.40x = 373,801.59 × 80,681.91
  4. Step 4: Simplify right side
    249,161.40x = 30,159,026,242.24
  5. Step 5: Solve for x
    x = 30,159,026,242.24/249,161.40
  6. Step 6: Final answer
    x = 121,042.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.