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Finding the Fourth Proportional to 125,011.95, 172,597.16 and 111,560.07

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Solution

The fourth proportional to 125,011.95, 172,597.16 and 111,560.07 is: 154,024.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,011.95 : 172,597.16 = 111,560.07 : x
  2. Step 2: Convert to fraction form
    125,011.95/172,597.16 = 111,560.07/x
  3. Step 3: Cross multiply
    125,011.95x = 172,597.16 × 111,560.07
  4. Step 4: Simplify right side
    125,011.95x = 19,254,950,693.60
  5. Step 5: Solve for x
    x = 19,254,950,693.60/125,011.95
  6. Step 6: Final answer
    x = 154,024.88

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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.