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Finding the Fourth Proportional to 118,052.35, 162,938.53 and 75,023.45

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Solution

The fourth proportional to 118,052.35, 162,938.53 and 75,023.45 is: 103,549.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,052.35 : 162,938.53 = 75,023.45 : x
  2. Step 2: Convert to fraction form
    118,052.35/162,938.53 = 75,023.45/x
  3. Step 3: Cross multiply
    118,052.35x = 162,938.53 × 75,023.45
  4. Step 4: Simplify right side
    118,052.35x = 12,224,210,658.53
  5. Step 5: Solve for x
    x = 12,224,210,658.53/118,052.35
  6. Step 6: Final answer
    x = 103,549.07

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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.