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Finding the Fourth Proportional to 92,926.32, 128,219.32 and 56,603.36

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Solution

The fourth proportional to 92,926.32, 128,219.32 and 56,603.36 is: 78,101.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,926.32 : 128,219.32 = 56,603.36 : x
  2. Step 2: Convert to fraction form
    92,926.32/128,219.32 = 56,603.36/x
  3. Step 3: Cross multiply
    92,926.32x = 128,219.32 × 56,603.36
  4. Step 4: Simplify right side
    92,926.32x = 7,257,644,328.92
  5. Step 5: Solve for x
    x = 7,257,644,328.92/92,926.32
  6. Step 6: Final answer
    x = 78,101.06

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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.