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Finding the Fourth Proportional to 97,799.76, 134,963.80 and 53,087.76

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Solution

The fourth proportional to 97,799.76, 134,963.80 and 53,087.76 is: 73,261.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,799.76 : 134,963.80 = 53,087.76 : x
  2. Step 2: Convert to fraction form
    97,799.76/134,963.80 = 53,087.76/x
  3. Step 3: Cross multiply
    97,799.76x = 134,963.80 × 53,087.76
  4. Step 4: Simplify right side
    97,799.76x = 7,164,925,823.09
  5. Step 5: Solve for x
    x = 7,164,925,823.09/97,799.76
  6. Step 6: Final answer
    x = 73,261.18

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1.5x scale

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.