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Finding the Fourth Proportional to 127,053, 190,511.10 and 42,785.10

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Solution

The fourth proportional to 127,053, 190,511.10 and 42,785.10 is: 64,154.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,053 : 190,511.10 = 42,785.10 : x
  2. Step 2: Convert to fraction form
    127,053/190,511.10 = 42,785.10/x
  3. Step 3: Cross multiply
    127,053x = 190,511.10 × 42,785.10
  4. Step 4: Simplify right side
    127,053x = 8,151,036,464.61
  5. Step 5: Solve for x
    x = 8,151,036,464.61/127,053
  6. Step 6: Final answer
    x = 64,154.62

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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.