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Finding the Fourth Proportional to 487,773.93, 731,643.32 and 127,941.91

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Solution

The fourth proportional to 487,773.93, 731,643.32 and 127,941.91 is: 191,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,773.93 : 731,643.32 = 127,941.91 : x
  2. Step 2: Convert to fraction form
    487,773.93/731,643.32 = 127,941.91/x
  3. Step 3: Cross multiply
    487,773.93x = 731,643.32 × 127,941.91
  4. Step 4: Simplify right side
    487,773.93x = 93,607,841,330.72
  5. Step 5: Solve for x
    x = 93,607,841,330.72/487,773.93
  6. Step 6: Final answer
    x = 191,908.25

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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.