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Finding the Fourth Proportional to 101,153, 139,591.14 and 56,441.32

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Solution

The fourth proportional to 101,153, 139,591.14 and 56,441.32 is: 77,889.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,153 : 139,591.14 = 56,441.32 : x
  2. Step 2: Convert to fraction form
    101,153/139,591.14 = 56,441.32/x
  3. Step 3: Cross multiply
    101,153x = 139,591.14 × 56,441.32
  4. Step 4: Simplify right side
    101,153x = 7,878,708,201.90
  5. Step 5: Solve for x
    x = 7,878,708,201.90/101,153
  6. Step 6: Final answer
    x = 77,889.02

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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.