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Finding the Fourth Proportional to 70,808.51, 97,725.08 and 42,516.02

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Solution

The fourth proportional to 70,808.51, 97,725.08 and 42,516.02 is: 58,677.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,808.51 : 97,725.08 = 42,516.02 : x
  2. Step 2: Convert to fraction form
    70,808.51/97,725.08 = 42,516.02/x
  3. Step 3: Cross multiply
    70,808.51x = 97,725.08 × 42,516.02
  4. Step 4: Simplify right side
    70,808.51x = 4,154,881,455.78
  5. Step 5: Solve for x
    x = 4,154,881,455.78/70,808.51
  6. Step 6: Final answer
    x = 58,677.71

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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.