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Finding the Fourth Proportional to 180,909.34, 249,614.96 and 104,412.20

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Solution

The fourth proportional to 180,909.34, 249,614.96 and 104,412.20 is: 144,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,909.34 : 249,614.96 = 104,412.20 : x
  2. Step 2: Convert to fraction form
    180,909.34/249,614.96 = 104,412.20/x
  3. Step 3: Cross multiply
    180,909.34x = 249,614.96 × 104,412.20
  4. Step 4: Simplify right side
    180,909.34x = 26,062,845,356.38
  5. Step 5: Solve for x
    x = 26,062,845,356.38/180,909.34
  6. Step 6: Final answer
    x = 144,065.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.