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Finding the Fourth Proportional to 101,152.44, 139,590.28 and 56,440.44

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Solution

The fourth proportional to 101,152.44, 139,590.28 and 56,440.44 is: 77,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,152.44 : 139,590.28 = 56,440.44 : x
  2. Step 2: Convert to fraction form
    101,152.44/139,590.28 = 56,440.44/x
  3. Step 3: Cross multiply
    101,152.44x = 139,590.28 × 56,440.44
  4. Step 4: Simplify right side
    101,152.44x = 7,878,536,822.92
  5. Step 5: Solve for x
    x = 7,878,536,822.92/101,152.44
  6. Step 6: Final answer
    x = 77,887.76

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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.