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Finding the Fourth Proportional to 60,931.12, 83,898.02 and 53,334.94

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Solution

The fourth proportional to 60,931.12, 83,898.02 and 53,334.94 is: 73,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,931.12 : 83,898.02 = 53,334.94 : x
  2. Step 2: Convert to fraction form
    60,931.12/83,898.02 = 53,334.94/x
  3. Step 3: Cross multiply
    60,931.12x = 83,898.02 × 53,334.94
  4. Step 4: Simplify right side
    60,931.12x = 4,474,695,862.82
  5. Step 5: Solve for x
    x = 4,474,695,862.82/60,931.12
  6. Step 6: Final answer
    x = 73,438.60

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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.