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Finding the Fourth Proportional to 249,696.96, 374,580.98 and 81,163.10

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Solution

The fourth proportional to 249,696.96, 374,580.98 and 81,163.10 is: 121,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,696.96 : 374,580.98 = 81,163.10 : x
  2. Step 2: Convert to fraction form
    249,696.96/374,580.98 = 81,163.10/x
  3. Step 3: Cross multiply
    249,696.96x = 374,580.98 × 81,163.10
  4. Step 4: Simplify right side
    249,696.96x = 30,402,151,259.12
  5. Step 5: Solve for x
    x = 30,402,151,259.12/249,696.96
  6. Step 6: Final answer
    x = 121,756.19

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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.