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Finding the Fourth Proportional to 114,916.79, 172,402.80 and 36,031.03

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Solution

The fourth proportional to 114,916.79, 172,402.80 and 36,031.03 is: 54,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,916.79 : 172,402.80 = 36,031.03 : x
  2. Step 2: Convert to fraction form
    114,916.79/172,402.80 = 36,031.03/x
  3. Step 3: Cross multiply
    114,916.79x = 172,402.80 × 36,031.03
  4. Step 4: Simplify right side
    114,916.79x = 6,211,849,892.76
  5. Step 5: Solve for x
    x = 6,211,849,892.76/114,916.79
  6. Step 6: Final answer
    x = 54,055.20

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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.