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Finding the Fourth Proportional to 112,376.75, 155,084.52 and 64,630.08

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Solution

The fourth proportional to 112,376.75, 155,084.52 and 64,630.08 is: 89,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,376.75 : 155,084.52 = 64,630.08 : x
  2. Step 2: Convert to fraction form
    112,376.75/155,084.52 = 64,630.08/x
  3. Step 3: Cross multiply
    112,376.75x = 155,084.52 × 64,630.08
  4. Step 4: Simplify right side
    112,376.75x = 10,023,124,934.36
  5. Step 5: Solve for x
    x = 10,023,124,934.36/112,376.75
  6. Step 6: Final answer
    x = 89,192.16

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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.