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Finding the Fourth Proportional to 100,916.69, 139,406.67 and 95,602.28

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Solution

The fourth proportional to 100,916.69, 139,406.67 and 95,602.28 is: 132,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,916.69 : 139,406.67 = 95,602.28 : x
  2. Step 2: Convert to fraction form
    100,916.69/139,406.67 = 95,602.28/x
  3. Step 3: Cross multiply
    100,916.69x = 139,406.67 × 95,602.28
  4. Step 4: Simplify right side
    100,916.69x = 13,327,594,802.17
  5. Step 5: Solve for x
    x = 13,327,594,802.17/100,916.69
  6. Step 6: Final answer
    x = 132,065.32

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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.