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Finding the Fourth Proportional to 104,572.19, 156,841.81 and 86,916.22

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Solution

The fourth proportional to 104,572.19, 156,841.81 and 86,916.22 is: 130,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,572.19 : 156,841.81 = 86,916.22 : x
  2. Step 2: Convert to fraction form
    104,572.19/156,841.81 = 86,916.22/x
  3. Step 3: Cross multiply
    104,572.19x = 156,841.81 × 86,916.22
  4. Step 4: Simplify right side
    104,572.19x = 13,632,097,263.16
  5. Step 5: Solve for x
    x = 13,632,097,263.16/104,572.19
  6. Step 6: Final answer
    x = 130,360.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.