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Finding the Fourth Proportional to 83,328.40, 124,733.40 and 60,000.40

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Solution

The fourth proportional to 83,328.40, 124,733.40 and 60,000.40 is: 89,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,328.40 : 124,733.40 = 60,000.40 : x
  2. Step 2: Convert to fraction form
    83,328.40/124,733.40 = 60,000.40/x
  3. Step 3: Cross multiply
    83,328.40x = 124,733.40 × 60,000.40
  4. Step 4: Simplify right side
    83,328.40x = 7,484,053,893.36
  5. Step 5: Solve for x
    x = 7,484,053,893.36/83,328.40
  6. Step 6: Final answer
    x = 89,813.96

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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.