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Finding the Fourth Proportional to 292,466, 403,603.62 and 158,330

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Solution

The fourth proportional to 292,466, 403,603.62 and 158,330 is: 218,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,466 : 403,603.62 = 158,330 : x
  2. Step 2: Convert to fraction form
    292,466/403,603.62 = 158,330/x
  3. Step 3: Cross multiply
    292,466x = 403,603.62 × 158,330
  4. Step 4: Simplify right side
    292,466x = 63,902,561,154.60
  5. Step 5: Solve for x
    x = 63,902,561,154.60/292,466
  6. Step 6: Final answer
    x = 218,495.69

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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.