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Finding the Fourth Proportional to 92,907.69, 128,212.52 and 50,465.93

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Solution

The fourth proportional to 92,907.69, 128,212.52 and 50,465.93 is: 69,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,907.69 : 128,212.52 = 50,465.93 : x
  2. Step 2: Convert to fraction form
    92,907.69/128,212.52 = 50,465.93/x
  3. Step 3: Cross multiply
    92,907.69x = 128,212.52 × 50,465.93
  4. Step 4: Simplify right side
    92,907.69x = 6,470,363,166.05
  5. Step 5: Solve for x
    x = 6,470,363,166.05/92,907.69
  6. Step 6: Final answer
    x = 69,642.92

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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.