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Finding the Fourth Proportional to 93,377, 140,066.72 and 31,047.50

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Solution

The fourth proportional to 93,377, 140,066.72 and 31,047.50 is: 46,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,377 : 140,066.72 = 31,047.50 : x
  2. Step 2: Convert to fraction form
    93,377/140,066.72 = 31,047.50/x
  3. Step 3: Cross multiply
    93,377x = 140,066.72 × 31,047.50
  4. Step 4: Simplify right side
    93,377x = 4,348,721,489.20
  5. Step 5: Solve for x
    x = 4,348,721,489.20/93,377
  6. Step 6: Final answer
    x = 46,571.66

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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.