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Finding the Fourth Proportional to 245,358, 368,016.48 and 67,867.20

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Solution

The fourth proportional to 245,358, 368,016.48 and 67,867.20 is: 101,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,358 : 368,016.48 = 67,867.20 : x
  2. Step 2: Convert to fraction form
    245,358/368,016.48 = 67,867.20/x
  3. Step 3: Cross multiply
    245,358x = 368,016.48 × 67,867.20
  4. Step 4: Simplify right side
    245,358x = 24,976,248,051.46
  5. Step 5: Solve for x
    x = 24,976,248,051.46/245,358
  6. Step 6: Final answer
    x = 101,795.12

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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.