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Finding the Fourth Proportional to 363,615.80, 545,423.70 and 97,417.40

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Solution

The fourth proportional to 363,615.80, 545,423.70 and 97,417.40 is: 146,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,615.80 : 545,423.70 = 97,417.40 : x
  2. Step 2: Convert to fraction form
    363,615.80/545,423.70 = 97,417.40/x
  3. Step 3: Cross multiply
    363,615.80x = 545,423.70 × 97,417.40
  4. Step 4: Simplify right side
    363,615.80x = 53,133,758,752.38
  5. Step 5: Solve for x
    x = 53,133,758,752.38/363,615.80
  6. Step 6: Final answer
    x = 146,126.10

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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.