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Finding the Fourth Proportional to 93,585.12, 140,166.18 and 65,629.32

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Solution

The fourth proportional to 93,585.12, 140,166.18 and 65,629.32 is: 98,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,585.12 : 140,166.18 = 65,629.32 : x
  2. Step 2: Convert to fraction form
    93,585.12/140,166.18 = 65,629.32/x
  3. Step 3: Cross multiply
    93,585.12x = 140,166.18 × 65,629.32
  4. Step 4: Simplify right side
    93,585.12x = 9,199,011,080.40
  5. Step 5: Solve for x
    x = 9,199,011,080.40/93,585.12
  6. Step 6: Final answer
    x = 98,295.66

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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.