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Finding the Fourth Proportional to 124,379.70, 171,677.52 and 70,666.98

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Solution

The fourth proportional to 124,379.70, 171,677.52 and 70,666.98 is: 97,539.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,379.70 : 171,677.52 = 70,666.98 : x
  2. Step 2: Convert to fraction form
    124,379.70/171,677.52 = 70,666.98/x
  3. Step 3: Cross multiply
    124,379.70x = 171,677.52 × 70,666.98
  4. Step 4: Simplify right side
    124,379.70x = 12,131,931,872.29
  5. Step 5: Solve for x
    x = 12,131,931,872.29/124,379.70
  6. Step 6: Final answer
    x = 97,539.48

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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.