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Finding the Fourth Proportional to 155,165.51, 232,425.34 and 98,726.05

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Solution

The fourth proportional to 155,165.51, 232,425.34 and 98,726.05 is: 147,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,165.51 : 232,425.34 = 98,726.05 : x
  2. Step 2: Convert to fraction form
    155,165.51/232,425.34 = 98,726.05/x
  3. Step 3: Cross multiply
    155,165.51x = 232,425.34 × 98,726.05
  4. Step 4: Simplify right side
    155,165.51x = 22,946,434,082.35
  5. Step 5: Solve for x
    x = 22,946,434,082.35/155,165.51
  6. Step 6: Final answer
    x = 147,883.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.