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Finding the Fourth Proportional to 88,281, 121,827.78 and 48,537

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Solution

The fourth proportional to 88,281, 121,827.78 and 48,537 is: 66,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,281 : 121,827.78 = 48,537 : x
  2. Step 2: Convert to fraction form
    88,281/121,827.78 = 48,537/x
  3. Step 3: Cross multiply
    88,281x = 121,827.78 × 48,537
  4. Step 4: Simplify right side
    88,281x = 5,913,154,957.86
  5. Step 5: Solve for x
    x = 5,913,154,957.86/88,281
  6. Step 6: Final answer
    x = 66,981.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.