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Finding the Fourth Proportional to 71,948.46, 99,244 and 46,445

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Solution

The fourth proportional to 71,948.46, 99,244 and 46,445 is: 64,065.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,948.46 : 99,244 = 46,445 : x
  2. Step 2: Convert to fraction form
    71,948.46/99,244 = 46,445/x
  3. Step 3: Cross multiply
    71,948.46x = 99,244 × 46,445
  4. Step 4: Simplify right side
    71,948.46x = 4,609,387,580
  5. Step 5: Solve for x
    x = 4,609,387,580/71,948.46
  6. Step 6: Final answer
    x = 64,065.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.