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Finding the Fourth Proportional to 88,244.48, 121,805.76 and 56,498.88

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Solution

The fourth proportional to 88,244.48, 121,805.76 and 56,498.88 is: 77,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,244.48 : 121,805.76 = 56,498.88 : x
  2. Step 2: Convert to fraction form
    88,244.48/121,805.76 = 56,498.88/x
  3. Step 3: Cross multiply
    88,244.48x = 121,805.76 × 56,498.88
  4. Step 4: Simplify right side
    88,244.48x = 6,881,889,017.55
  5. Step 5: Solve for x
    x = 6,881,889,017.55/88,244.48
  6. Step 6: Final answer
    x = 77,986.62

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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.