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Finding the Fourth Proportional to 110,307.88, 152,216.58 and 64,988.92

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Solution

The fourth proportional to 110,307.88, 152,216.58 and 64,988.92 is: 89,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,307.88 : 152,216.58 = 64,988.92 : x
  2. Step 2: Convert to fraction form
    110,307.88/152,216.58 = 64,988.92/x
  3. Step 3: Cross multiply
    110,307.88x = 152,216.58 × 64,988.92
  4. Step 4: Simplify right side
    110,307.88x = 9,892,391,140.29
  5. Step 5: Solve for x
    x = 9,892,391,140.29/110,307.88
  6. Step 6: Final answer
    x = 89,679.82

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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.