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Finding the Fourth Proportional to 249,699.96, 374,585.48 and 81,166.10

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Solution

The fourth proportional to 249,699.96, 374,585.48 and 81,166.10 is: 121,760.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,699.96 : 374,585.48 = 81,166.10 : x
  2. Step 2: Convert to fraction form
    249,699.96/374,585.48 = 81,166.10/x
  3. Step 3: Cross multiply
    249,699.96x = 374,585.48 × 81,166.10
  4. Step 4: Simplify right side
    249,699.96x = 30,403,642,528.23
  5. Step 5: Solve for x
    x = 30,403,642,528.23/249,699.96
  6. Step 6: Final answer
    x = 121,760.70

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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.