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Finding the Fourth Proportional to 124,535.64, 171,859.74 and 67,948.20

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Solution

The fourth proportional to 124,535.64, 171,859.74 and 67,948.20 is: 93,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,535.64 : 171,859.74 = 67,948.20 : x
  2. Step 2: Convert to fraction form
    124,535.64/171,859.74 = 67,948.20/x
  3. Step 3: Cross multiply
    124,535.64x = 171,859.74 × 67,948.20
  4. Step 4: Simplify right side
    124,535.64x = 11,677,559,985.47
  5. Step 5: Solve for x
    x = 11,677,559,985.47/124,535.64
  6. Step 6: Final answer
    x = 93,768.82

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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.