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Finding the Fourth Proportional to 124,130.64, 171,298.62 and 67,541.88

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Solution

The fourth proportional to 124,130.64, 171,298.62 and 67,541.88 is: 93,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,130.64 : 171,298.62 = 67,541.88 : x
  2. Step 2: Convert to fraction form
    124,130.64/171,298.62 = 67,541.88/x
  3. Step 3: Cross multiply
    124,130.64x = 171,298.62 × 67,541.88
  4. Step 4: Simplify right side
    124,130.64x = 11,569,830,836.21
  5. Step 5: Solve for x
    x = 11,569,830,836.21/124,130.64
  6. Step 6: Final answer
    x = 93,206.89

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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.