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Finding the Fourth Proportional to 112,362.19, 155,060.63 and 62,061.19

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Solution

The fourth proportional to 112,362.19, 155,060.63 and 62,061.19 is: 85,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,362.19 : 155,060.63 = 62,061.19 : x
  2. Step 2: Convert to fraction form
    112,362.19/155,060.63 = 62,061.19/x
  3. Step 3: Cross multiply
    112,362.19x = 155,060.63 × 62,061.19
  4. Step 4: Simplify right side
    112,362.19x = 9,623,247,219.95
  5. Step 5: Solve for x
    x = 9,623,247,219.95/112,362.19
  6. Step 6: Final answer
    x = 85,644.89

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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.