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Finding the Fourth Proportional to 292,492.32, 438,784.92 and 124,013.40

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Solution

The fourth proportional to 292,492.32, 438,784.92 and 124,013.40 is: 186,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,492.32 : 438,784.92 = 124,013.40 : x
  2. Step 2: Convert to fraction form
    292,492.32/438,784.92 = 124,013.40/x
  3. Step 3: Cross multiply
    292,492.32x = 438,784.92 × 124,013.40
  4. Step 4: Simplify right side
    292,492.32x = 54,415,209,797.93
  5. Step 5: Solve for x
    x = 54,415,209,797.93/292,492.32
  6. Step 6: Final answer
    x = 186,039.79

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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.