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Finding the Fourth Proportional to 187,374.42, 258,552.63 and 114,809.76

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Solution

The fourth proportional to 187,374.42, 258,552.63 and 114,809.76 is: 158,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,374.42 : 258,552.63 = 114,809.76 : x
  2. Step 2: Convert to fraction form
    187,374.42/258,552.63 = 114,809.76/x
  3. Step 3: Cross multiply
    187,374.42x = 258,552.63 × 114,809.76
  4. Step 4: Simplify right side
    187,374.42x = 29,684,365,397.67
  5. Step 5: Solve for x
    x = 29,684,365,397.67/187,374.42
  6. Step 6: Final answer
    x = 158,422.72

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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.