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Finding the Fourth Proportional to 112,466.88, 155,192.76 and 64,710.90

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Solution

The fourth proportional to 112,466.88, 155,192.76 and 64,710.90 is: 89,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,466.88 : 155,192.76 = 64,710.90 : x
  2. Step 2: Convert to fraction form
    112,466.88/155,192.76 = 64,710.90/x
  3. Step 3: Cross multiply
    112,466.88x = 155,192.76 × 64,710.90
  4. Step 4: Simplify right side
    112,466.88x = 10,042,663,173.08
  5. Step 5: Solve for x
    x = 10,042,663,173.08/112,466.88
  6. Step 6: Final answer
    x = 89,294.41

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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.