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Finding the Fourth Proportional to 118,527.56, 177,671.21 and 42,603.47

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Solution

The fourth proportional to 118,527.56, 177,671.21 and 42,603.47 is: 63,862.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,527.56 : 177,671.21 = 42,603.47 : x
  2. Step 2: Convert to fraction form
    118,527.56/177,671.21 = 42,603.47/x
  3. Step 3: Cross multiply
    118,527.56x = 177,671.21 × 42,603.47
  4. Step 4: Simplify right side
    118,527.56x = 7,569,409,176.74
  5. Step 5: Solve for x
    x = 7,569,409,176.74/118,527.56
  6. Step 6: Final answer
    x = 63,862.02

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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.