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Finding the Fourth Proportional to 123,886.55, 185,903.33 and 45,006.93

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Solution

The fourth proportional to 123,886.55, 185,903.33 and 45,006.93 is: 67,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,886.55 : 185,903.33 = 45,006.93 : x
  2. Step 2: Convert to fraction form
    123,886.55/185,903.33 = 45,006.93/x
  3. Step 3: Cross multiply
    123,886.55x = 185,903.33 × 45,006.93
  4. Step 4: Simplify right side
    123,886.55x = 8,366,937,935.04
  5. Step 5: Solve for x
    x = 8,366,937,935.04/123,886.55
  6. Step 6: Final answer
    x = 67,537.10

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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.