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Finding the Fourth Proportional to 107,083.65, 147,537.54 and 70,720.52

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Solution

The fourth proportional to 107,083.65, 147,537.54 and 70,720.52 is: 97,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,083.65 : 147,537.54 = 70,720.52 : x
  2. Step 2: Convert to fraction form
    107,083.65/147,537.54 = 70,720.52/x
  3. Step 3: Cross multiply
    107,083.65x = 147,537.54 × 70,720.52
  4. Step 4: Simplify right side
    107,083.65x = 10,433,931,548.32
  5. Step 5: Solve for x
    x = 10,433,931,548.32/107,083.65
  6. Step 6: Final answer
    x = 97,437.20

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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.