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Finding the Fourth Proportional to 113,989.58, 157,300.72 and 62,999.67

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Solution

The fourth proportional to 113,989.58, 157,300.72 and 62,999.67 is: 86,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,989.58 : 157,300.72 = 62,999.67 : x
  2. Step 2: Convert to fraction form
    113,989.58/157,300.72 = 62,999.67/x
  3. Step 3: Cross multiply
    113,989.58x = 157,300.72 × 62,999.67
  4. Step 4: Simplify right side
    113,989.58x = 9,909,893,883.14
  5. Step 5: Solve for x
    x = 9,909,893,883.14/113,989.58
  6. Step 6: Final answer
    x = 86,936.84

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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.