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Finding the Fourth Proportional to 124,335, 186,600.78 and 54,263.52

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Solution

The fourth proportional to 124,335, 186,600.78 and 54,263.52 is: 81,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,335 : 186,600.78 = 54,263.52 : x
  2. Step 2: Convert to fraction form
    124,335/186,600.78 = 54,263.52/x
  3. Step 3: Cross multiply
    124,335x = 186,600.78 × 54,263.52
  4. Step 4: Simplify right side
    124,335x = 10,125,615,157.55
  5. Step 5: Solve for x
    x = 10,125,615,157.55/124,335
  6. Step 6: Final answer
    x = 81,438.17

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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.