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Finding the Fourth Proportional to 236,417.76, 354,643.92 and 67,931.28

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Solution

The fourth proportional to 236,417.76, 354,643.92 and 67,931.28 is: 101,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,417.76 : 354,643.92 = 67,931.28 : x
  2. Step 2: Convert to fraction form
    236,417.76/354,643.92 = 67,931.28/x
  3. Step 3: Cross multiply
    236,417.76x = 354,643.92 × 67,931.28
  4. Step 4: Simplify right side
    236,417.76x = 24,091,415,429.82
  5. Step 5: Solve for x
    x = 24,091,415,429.82/236,417.76
  6. Step 6: Final answer
    x = 101,901.89

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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.