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Finding the Fourth Proportional to 292,730, 439,096.08 and 71,114

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Solution

The fourth proportional to 292,730, 439,096.08 and 71,114 is: 106,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,730 : 439,096.08 = 71,114 : x
  2. Step 2: Convert to fraction form
    292,730/439,096.08 = 71,114/x
  3. Step 3: Cross multiply
    292,730x = 439,096.08 × 71,114
  4. Step 4: Simplify right side
    292,730x = 31,225,878,633.12
  5. Step 5: Solve for x
    x = 31,225,878,633.12/292,730
  6. Step 6: Final answer
    x = 106,671.26

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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.