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Finding the Fourth Proportional to 292,551.76, 438,986.40 and 124,166.80

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Solution

The fourth proportional to 292,551.76, 438,986.40 and 124,166.80 is: 186,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,551.76 : 438,986.40 = 124,166.80 : x
  2. Step 2: Convert to fraction form
    292,551.76/438,986.40 = 124,166.80/x
  3. Step 3: Cross multiply
    292,551.76x = 438,986.40 × 124,166.80
  4. Step 4: Simplify right side
    292,551.76x = 54,507,536,531.52
  5. Step 5: Solve for x
    x = 54,507,536,531.52/292,551.76
  6. Step 6: Final answer
    x = 186,317.58

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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.