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Finding the Fourth Proportional to 292,627, 438,941.58 and 71,011

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Solution

The fourth proportional to 292,627, 438,941.58 and 71,011 is: 106,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,627 : 438,941.58 = 71,011 : x
  2. Step 2: Convert to fraction form
    292,627/438,941.58 = 71,011/x
  3. Step 3: Cross multiply
    292,627x = 438,941.58 × 71,011
  4. Step 4: Simplify right side
    292,627x = 31,169,680,537.38
  5. Step 5: Solve for x
    x = 31,169,680,537.38/292,627
  6. Step 6: Final answer
    x = 106,516.76

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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.