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Finding the Fourth Proportional to 292,035.10, 438,052.65 and 192,307.90

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Solution

The fourth proportional to 292,035.10, 438,052.65 and 192,307.90 is: 288,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,035.10 : 438,052.65 = 192,307.90 : x
  2. Step 2: Convert to fraction form
    292,035.10/438,052.65 = 192,307.90/x
  3. Step 3: Cross multiply
    292,035.10x = 438,052.65 × 192,307.90
  4. Step 4: Simplify right side
    292,035.10x = 84,240,985,210.94
  5. Step 5: Solve for x
    x = 84,240,985,210.94/292,035.10
  6. Step 6: Final answer
    x = 288,461.85

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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.