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Finding the Fourth Proportional to 88,925.76, 122,721.48 and 51,212.16

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Solution

The fourth proportional to 88,925.76, 122,721.48 and 51,212.16 is: 70,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,925.76 : 122,721.48 = 51,212.16 : x
  2. Step 2: Convert to fraction form
    88,925.76/122,721.48 = 51,212.16/x
  3. Step 3: Cross multiply
    88,925.76x = 122,721.48 × 51,212.16
  4. Step 4: Simplify right side
    88,925.76x = 6,284,832,069.20
  5. Step 5: Solve for x
    x = 6,284,832,069.20/88,925.76
  6. Step 6: Final answer
    x = 70,675.04

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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.