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Finding the Fourth Proportional to 124,181.88, 171,365.90 and 70,465.76

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Solution

The fourth proportional to 124,181.88, 171,365.90 and 70,465.76 is: 97,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,181.88 : 171,365.90 = 70,465.76 : x
  2. Step 2: Convert to fraction form
    124,181.88/171,365.90 = 70,465.76/x
  3. Step 3: Cross multiply
    124,181.88x = 171,365.90 × 70,465.76
  4. Step 4: Simplify right side
    124,181.88x = 12,075,428,381.58
  5. Step 5: Solve for x
    x = 12,075,428,381.58/124,181.88
  6. Step 6: Final answer
    x = 97,239.86

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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.