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Finding the Fourth Proportional to 92,779.92, 128,035.14 and 50,338.14

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Solution

The fourth proportional to 92,779.92, 128,035.14 and 50,338.14 is: 69,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,779.92 : 128,035.14 = 50,338.14 : x
  2. Step 2: Convert to fraction form
    92,779.92/128,035.14 = 50,338.14/x
  3. Step 3: Cross multiply
    92,779.92x = 128,035.14 × 50,338.14
  4. Step 4: Simplify right side
    92,779.92x = 6,445,050,802.24
  5. Step 5: Solve for x
    x = 6,445,050,802.24/92,779.92
  6. Step 6: Final answer
    x = 69,466.01

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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.