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Finding the Fourth Proportional to 112,362.60, 155,060.40 and 62,061.60

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Solution

The fourth proportional to 112,362.60, 155,060.40 and 62,061.60 is: 85,645.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,362.60 : 155,060.40 = 62,061.60 : x
  2. Step 2: Convert to fraction form
    112,362.60/155,060.40 = 62,061.60/x
  3. Step 3: Cross multiply
    112,362.60x = 155,060.40 × 62,061.60
  4. Step 4: Simplify right side
    112,362.60x = 9,623,296,520.64
  5. Step 5: Solve for x
    x = 9,623,296,520.64/112,362.60
  6. Step 6: Final answer
    x = 85,645.01

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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.