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Finding the Fourth Proportional to 124,040.02, 171,170 and 70,328.64

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Solution

The fourth proportional to 124,040.02, 171,170 and 70,328.64 is: 97,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,040.02 : 171,170 = 70,328.64 : x
  2. Step 2: Convert to fraction form
    124,040.02/171,170 = 70,328.64/x
  3. Step 3: Cross multiply
    124,040.02x = 171,170 × 70,328.64
  4. Step 4: Simplify right side
    124,040.02x = 12,038,153,308.80
  5. Step 5: Solve for x
    x = 12,038,153,308.80/124,040.02
  6. Step 6: Final answer
    x = 97,050.56

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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.