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Finding the Fourth Proportional to 70,831.00, 97,717.49 and 42,144.94

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Solution

The fourth proportional to 70,831.00, 97,717.49 and 42,144.94 is: 58,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,831.00 : 97,717.49 = 42,144.94 : x
  2. Step 2: Convert to fraction form
    70,831.00/97,717.49 = 42,144.94/x
  3. Step 3: Cross multiply
    70,831.00x = 97,717.49 × 42,144.94
  4. Step 4: Simplify right side
    70,831.00x = 4,118,297,822.47
  5. Step 5: Solve for x
    x = 4,118,297,822.47/70,831.00
  6. Step 6: Final answer
    x = 58,142.59

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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.