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Finding the Fourth Proportional to 145,373.68, 218,060.52 and 45,534.72

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Solution

The fourth proportional to 145,373.68, 218,060.52 and 45,534.72 is: 68,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,373.68 : 218,060.52 = 45,534.72 : x
  2. Step 2: Convert to fraction form
    145,373.68/218,060.52 = 45,534.72/x
  3. Step 3: Cross multiply
    145,373.68x = 218,060.52 × 45,534.72
  4. Step 4: Simplify right side
    145,373.68x = 9,929,324,721.25
  5. Step 5: Solve for x
    x = 9,929,324,721.25/145,373.68
  6. Step 6: Final answer
    x = 68,302.08

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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.