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Finding the Fourth Proportional to 64,302.93, 88,768.85 and 42,828.41

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Solution

The fourth proportional to 64,302.93, 88,768.85 and 42,828.41 is: 59,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,302.93 : 88,768.85 = 42,828.41 : x
  2. Step 2: Convert to fraction form
    64,302.93/88,768.85 = 42,828.41/x
  3. Step 3: Cross multiply
    64,302.93x = 88,768.85 × 42,828.41
  4. Step 4: Simplify right side
    64,302.93x = 3,801,828,710.81
  5. Step 5: Solve for x
    x = 3,801,828,710.81/64,302.93
  6. Step 6: Final answer
    x = 59,123.72

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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.