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Finding the Fourth Proportional to 249,700.90, 374,551.35 and 165,720.10

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Solution

The fourth proportional to 249,700.90, 374,551.35 and 165,720.10 is: 248,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,700.90 : 374,551.35 = 165,720.10 : x
  2. Step 2: Convert to fraction form
    249,700.90/374,551.35 = 165,720.10/x
  3. Step 3: Cross multiply
    249,700.90x = 374,551.35 × 165,720.10
  4. Step 4: Simplify right side
    249,700.90x = 62,070,687,177.14
  5. Step 5: Solve for x
    x = 62,070,687,177.14/249,700.90
  6. Step 6: Final answer
    x = 248,580.15

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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.