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Finding the Fourth Proportional to 113,989.99, 157,314.32 and 63,001.62

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Solution

The fourth proportional to 113,989.99, 157,314.32 and 63,001.62 is: 86,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,989.99 : 157,314.32 = 63,001.62 : x
  2. Step 2: Convert to fraction form
    113,989.99/157,314.32 = 63,001.62/x
  3. Step 3: Cross multiply
    113,989.99x = 157,314.32 × 63,001.62
  4. Step 4: Simplify right side
    113,989.99x = 9,911,057,284.83
  5. Step 5: Solve for x
    x = 9,911,057,284.83/113,989.99
  6. Step 6: Final answer
    x = 86,946.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.