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Finding the Fourth Proportional to 292,017.44, 438,026.88 and 81,655.04

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Solution

The fourth proportional to 292,017.44, 438,026.88 and 81,655.04 is: 122,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,017.44 : 438,026.88 = 81,655.04 : x
  2. Step 2: Convert to fraction form
    292,017.44/438,026.88 = 81,655.04/x
  3. Step 3: Cross multiply
    292,017.44x = 438,026.88 × 81,655.04
  4. Step 4: Simplify right side
    292,017.44x = 35,767,102,407.48
  5. Step 5: Solve for x
    x = 35,767,102,407.48/292,017.44
  6. Step 6: Final answer
    x = 122,482.76

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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.