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Finding the Fourth Proportional to 238,699.28, 357,835.08 and 98,368.40

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Solution

The fourth proportional to 238,699.28, 357,835.08 and 98,368.40 is: 147,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,699.28 : 357,835.08 = 98,368.40 : x
  2. Step 2: Convert to fraction form
    238,699.28/357,835.08 = 98,368.40/x
  3. Step 3: Cross multiply
    238,699.28x = 357,835.08 × 98,368.40
  4. Step 4: Simplify right side
    238,699.28x = 35,199,664,283.47
  5. Step 5: Solve for x
    x = 35,199,664,283.47/238,699.28
  6. Step 6: Final answer
    x = 147,464.48

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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.