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Finding the Fourth Proportional to 88,226, 121,751.88 and 48,482

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Solution

The fourth proportional to 88,226, 121,751.88 and 48,482 is: 66,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,226 : 121,751.88 = 48,482 : x
  2. Step 2: Convert to fraction form
    88,226/121,751.88 = 48,482/x
  3. Step 3: Cross multiply
    88,226x = 121,751.88 × 48,482
  4. Step 4: Simplify right side
    88,226x = 5,902,774,646.16
  5. Step 5: Solve for x
    x = 5,902,774,646.16/88,226
  6. Step 6: Final answer
    x = 66,905.16

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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.