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Finding the Fourth Proportional to 93,407.13, 140,111.91 and 31,077.63

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Solution

The fourth proportional to 93,407.13, 140,111.91 and 31,077.63 is: 46,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,407.13 : 140,111.91 = 31,077.63 : x
  2. Step 2: Convert to fraction form
    93,407.13/140,111.91 = 31,077.63/x
  3. Step 3: Cross multiply
    93,407.13x = 140,111.91 × 31,077.63
  4. Step 4: Simplify right side
    93,407.13x = 4,354,346,097.57
  5. Step 5: Solve for x
    x = 4,354,346,097.57/93,407.13
  6. Step 6: Final answer
    x = 46,616.85

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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.