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Finding the Fourth Proportional to 157,068.10, 235,602.15 and 125,964.10

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Solution

The fourth proportional to 157,068.10, 235,602.15 and 125,964.10 is: 188,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,068.10 : 235,602.15 = 125,964.10 : x
  2. Step 2: Convert to fraction form
    157,068.10/235,602.15 = 125,964.10/x
  3. Step 3: Cross multiply
    157,068.10x = 235,602.15 × 125,964.10
  4. Step 4: Simplify right side
    157,068.10x = 29,677,412,782.82
  5. Step 5: Solve for x
    x = 29,677,412,782.82/157,068.10
  6. Step 6: Final answer
    x = 188,946.15

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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.