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Finding the Fourth Proportional to 124,403.50, 171,676.88 and 70,688.58

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Solution

The fourth proportional to 124,403.50, 171,676.88 and 70,688.58 is: 97,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,403.50 : 171,676.88 = 70,688.58 : x
  2. Step 2: Convert to fraction form
    124,403.50/171,676.88 = 70,688.58/x
  3. Step 3: Cross multiply
    124,403.50x = 171,676.88 × 70,688.58
  4. Step 4: Simplify right side
    124,403.50x = 12,135,594,866.03
  5. Step 5: Solve for x
    x = 12,135,594,866.03/124,403.50
  6. Step 6: Final answer
    x = 97,550.27

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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.