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Finding the Fourth Proportional to 64,148.61, 88,521.51 and 35,466.61

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Solution

The fourth proportional to 64,148.61, 88,521.51 and 35,466.61 is: 48,941.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,148.61 : 88,521.51 = 35,466.61 : x
  2. Step 2: Convert to fraction form
    64,148.61/88,521.51 = 35,466.61/x
  3. Step 3: Cross multiply
    64,148.61x = 88,521.51 × 35,466.61
  4. Step 4: Simplify right side
    64,148.61x = 3,139,557,749.96
  5. Step 5: Solve for x
    x = 3,139,557,749.96/64,148.61
  6. Step 6: Final answer
    x = 48,941.95

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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.