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Finding the Fourth Proportional to 283,490.15, 425,224.59 and 70,258.76

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Solution

The fourth proportional to 283,490.15, 425,224.59 and 70,258.76 is: 105,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,490.15 : 425,224.59 = 70,258.76 : x
  2. Step 2: Convert to fraction form
    283,490.15/425,224.59 = 70,258.76/x
  3. Step 3: Cross multiply
    283,490.15x = 425,224.59 × 70,258.76
  4. Step 4: Simplify right side
    283,490.15x = 29,875,751,619.91
  5. Step 5: Solve for x
    x = 29,875,751,619.91/283,490.15
  6. Step 6: Final answer
    x = 105,385.50

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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.