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Finding the Fourth Proportional to 238,904.96, 358,410.88 and 72,705.92

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Solution

The fourth proportional to 238,904.96, 358,410.88 and 72,705.92 is: 109,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,904.96 : 358,410.88 = 72,705.92 : x
  2. Step 2: Convert to fraction form
    238,904.96/358,410.88 = 72,705.92/x
  3. Step 3: Cross multiply
    238,904.96x = 358,410.88 × 72,705.92
  4. Step 4: Simplify right side
    238,904.96x = 26,058,592,768.41
  5. Step 5: Solve for x
    x = 26,058,592,768.41/238,904.96
  6. Step 6: Final answer
    x = 109,075.14

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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.