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Finding the Fourth Proportional to 101,117.16, 139,457.70 and 75,922.92

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Solution

The fourth proportional to 101,117.16, 139,457.70 and 75,922.92 is: 104,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,117.16 : 139,457.70 = 75,922.92 : x
  2. Step 2: Convert to fraction form
    101,117.16/139,457.70 = 75,922.92/x
  3. Step 3: Cross multiply
    101,117.16x = 139,457.70 × 75,922.92
  4. Step 4: Simplify right side
    101,117.16x = 10,588,035,800.48
  5. Step 5: Solve for x
    x = 10,588,035,800.48/101,117.16
  6. Step 6: Final answer
    x = 104,710.57

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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.