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Finding the Fourth Proportional to 64,569.39, 96,878.69 and 58,307.73

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Solution

The fourth proportional to 64,569.39, 96,878.69 and 58,307.73 is: 87,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,569.39 : 96,878.69 = 58,307.73 : x
  2. Step 2: Convert to fraction form
    64,569.39/96,878.69 = 58,307.73/x
  3. Step 3: Cross multiply
    64,569.39x = 96,878.69 × 58,307.73
  4. Step 4: Simplify right side
    64,569.39x = 5,648,776,207.74
  5. Step 5: Solve for x
    x = 5,648,776,207.74/64,569.39
  6. Step 6: Final answer
    x = 87,483.81

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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.