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Finding the Fourth Proportional to 124,421.58, 171,701.78 and 70,706.70

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Solution

The fourth proportional to 124,421.58, 171,701.78 and 70,706.70 is: 97,575.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,421.58 : 171,701.78 = 70,706.70 : x
  2. Step 2: Convert to fraction form
    124,421.58/171,701.78 = 70,706.70/x
  3. Step 3: Cross multiply
    124,421.58x = 171,701.78 × 70,706.70
  4. Step 4: Simplify right side
    124,421.58x = 12,140,465,894.39
  5. Step 5: Solve for x
    x = 12,140,465,894.39/124,421.58
  6. Step 6: Final answer
    x = 97,575.24

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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.