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Finding the Fourth Proportional to 113,803.52, 157,030.06 and 63,502.40

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Solution

The fourth proportional to 113,803.52, 157,030.06 and 63,502.40 is: 87,622.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,803.52 : 157,030.06 = 63,502.40 : x
  2. Step 2: Convert to fraction form
    113,803.52/157,030.06 = 63,502.40/x
  3. Step 3: Cross multiply
    113,803.52x = 157,030.06 × 63,502.40
  4. Step 4: Simplify right side
    113,803.52x = 9,971,785,682.14
  5. Step 5: Solve for x
    x = 9,971,785,682.14/113,803.52
  6. Step 6: Final answer
    x = 87,622.82

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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.