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Finding the Fourth Proportional to 163,215.40, 244,823.10 and 141,345.40

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Solution

The fourth proportional to 163,215.40, 244,823.10 and 141,345.40 is: 212,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,215.40 : 244,823.10 = 141,345.40 : x
  2. Step 2: Convert to fraction form
    163,215.40/244,823.10 = 141,345.40/x
  3. Step 3: Cross multiply
    163,215.40x = 244,823.10 × 141,345.40
  4. Step 4: Simplify right side
    163,215.40x = 34,604,618,998.74
  5. Step 5: Solve for x
    x = 34,604,618,998.74/163,215.40
  6. Step 6: Final answer
    x = 212,018.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.