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Finding the Fourth Proportional to 124,341.48, 171,590.81 and 70,615.80

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Solution

The fourth proportional to 124,341.48, 171,590.81 and 70,615.80 is: 97,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,341.48 : 171,590.81 = 70,615.80 : x
  2. Step 2: Convert to fraction form
    124,341.48/171,590.81 = 70,615.80/x
  3. Step 3: Cross multiply
    124,341.48x = 171,590.81 × 70,615.80
  4. Step 4: Simplify right side
    124,341.48x = 12,117,021,967.72
  5. Step 5: Solve for x
    x = 12,117,021,967.72/124,341.48
  6. Step 6: Final answer
    x = 97,449.56

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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.