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Finding the Fourth Proportional to 112,377.08, 155,085.08 and 64,630.46

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Solution

The fourth proportional to 112,377.08, 155,085.08 and 64,630.46 is: 89,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,377.08 : 155,085.08 = 64,630.46 : x
  2. Step 2: Convert to fraction form
    112,377.08/155,085.08 = 64,630.46/x
  3. Step 3: Cross multiply
    112,377.08x = 155,085.08 × 64,630.46
  4. Step 4: Simplify right side
    112,377.08x = 10,023,220,059.54
  5. Step 5: Solve for x
    x = 10,023,220,059.54/112,377.08
  6. Step 6: Final answer
    x = 89,192.74

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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.