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Finding the Fourth Proportional to 124,501.88, 171,805.74 and 70,779.44

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Solution

The fourth proportional to 124,501.88, 171,805.74 and 70,779.44 is: 97,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,501.88 : 171,805.74 = 70,779.44 : x
  2. Step 2: Convert to fraction form
    124,501.88/171,805.74 = 70,779.44/x
  3. Step 3: Cross multiply
    124,501.88x = 171,805.74 × 70,779.44
  4. Step 4: Simplify right side
    124,501.88x = 12,160,314,065.99
  5. Step 5: Solve for x
    x = 12,160,314,065.99/124,501.88
  6. Step 6: Final answer
    x = 97,671.73

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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.