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Finding the Fourth Proportional to 162,988.76, 224,926.53 and 99,332.48

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Solution

The fourth proportional to 162,988.76, 224,926.53 and 99,332.48 is: 137,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,988.76 : 224,926.53 = 99,332.48 : x
  2. Step 2: Convert to fraction form
    162,988.76/224,926.53 = 99,332.48/x
  3. Step 3: Cross multiply
    162,988.76x = 224,926.53 × 99,332.48
  4. Step 4: Simplify right side
    162,988.76x = 22,342,510,042.69
  5. Step 5: Solve for x
    x = 22,342,510,042.69/162,988.76
  6. Step 6: Final answer
    x = 137,080.07

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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.