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Finding the Fourth Proportional to 163,643.10, 244,881.45 and 113,487.90

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Solution

The fourth proportional to 163,643.10, 244,881.45 and 113,487.90 is: 169,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,643.10 : 244,881.45 = 113,487.90 : x
  2. Step 2: Convert to fraction form
    163,643.10/244,881.45 = 113,487.90/x
  3. Step 3: Cross multiply
    163,643.10x = 244,881.45 × 113,487.90
  4. Step 4: Simplify right side
    163,643.10x = 27,791,081,509.46
  5. Step 5: Solve for x
    x = 27,791,081,509.46/163,643.10
  6. Step 6: Final answer
    x = 169,827.40

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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.