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Finding the Fourth Proportional to 124,520.67, 171,837.72 and 70,805.70

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Solution

The fourth proportional to 124,520.67, 171,837.72 and 70,805.70 is: 97,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,520.67 : 171,837.72 = 70,805.70 : x
  2. Step 2: Convert to fraction form
    124,520.67/171,837.72 = 70,805.70/x
  3. Step 3: Cross multiply
    124,520.67x = 171,837.72 × 70,805.70
  4. Step 4: Simplify right side
    124,520.67x = 12,167,090,051.00
  5. Step 5: Solve for x
    x = 12,167,090,051.00/124,520.67
  6. Step 6: Final answer
    x = 97,711.41

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1.5x scale

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.