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Finding the Fourth Proportional to 253,833.40, 380,349.54 and 93,688.91

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Solution

The fourth proportional to 253,833.40, 380,349.54 and 93,688.91 is: 140,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,833.40 : 380,349.54 = 93,688.91 : x
  2. Step 2: Convert to fraction form
    253,833.40/380,349.54 = 93,688.91/x
  3. Step 3: Cross multiply
    253,833.40x = 380,349.54 × 93,688.91
  4. Step 4: Simplify right side
    253,833.40x = 35,634,533,821.60
  5. Step 5: Solve for x
    x = 35,634,533,821.60/253,833.40
  6. Step 6: Final answer
    x = 140,385.52

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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.