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Finding the Fourth Proportional to 101,706.99, 140,363.93 and 56,399.18

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Solution

The fourth proportional to 101,706.99, 140,363.93 and 56,399.18 is: 77,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,706.99 : 140,363.93 = 56,399.18 : x
  2. Step 2: Convert to fraction form
    101,706.99/140,363.93 = 56,399.18/x
  3. Step 3: Cross multiply
    101,706.99x = 140,363.93 × 56,399.18
  4. Step 4: Simplify right side
    101,706.99x = 7,916,409,569.76
  5. Step 5: Solve for x
    x = 7,916,409,569.76/101,706.99
  6. Step 6: Final answer
    x = 77,835.46

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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.