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Finding the Fourth Proportional to 245,666.32, 368,503.80 and 88,007.92

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Solution

The fourth proportional to 245,666.32, 368,503.80 and 88,007.92 is: 132,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,666.32 : 368,503.80 = 88,007.92 : x
  2. Step 2: Convert to fraction form
    245,666.32/368,503.80 = 88,007.92/x
  3. Step 3: Cross multiply
    245,666.32x = 368,503.80 × 88,007.92
  4. Step 4: Simplify right side
    245,666.32x = 32,431,252,950.10
  5. Step 5: Solve for x
    x = 32,431,252,950.10/245,666.32
  6. Step 6: Final answer
    x = 132,013.43

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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.