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Finding the Fourth Proportional to 117,435.61, 176,153.42 and 42,541.80

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Solution

The fourth proportional to 117,435.61, 176,153.42 and 42,541.80 is: 63,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435.61 : 176,153.42 = 42,541.80 : x
  2. Step 2: Convert to fraction form
    117,435.61/176,153.42 = 42,541.80/x
  3. Step 3: Cross multiply
    117,435.61x = 176,153.42 × 42,541.80
  4. Step 4: Simplify right side
    117,435.61x = 7,493,883,562.96
  5. Step 5: Solve for x
    x = 7,493,883,562.96/117,435.61
  6. Step 6: Final answer
    x = 63,812.70

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1.5x scale

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.