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Finding the Fourth Proportional to 93,379.50, 128,854.95 and 53,085.36

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Solution

The fourth proportional to 93,379.50, 128,854.95 and 53,085.36 is: 73,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,379.50 : 128,854.95 = 53,085.36 : x
  2. Step 2: Convert to fraction form
    93,379.50/128,854.95 = 53,085.36/x
  3. Step 3: Cross multiply
    93,379.50x = 128,854.95 × 53,085.36
  4. Step 4: Simplify right side
    93,379.50x = 6,840,311,408.53
  5. Step 5: Solve for x
    x = 6,840,311,408.53/93,379.50
  6. Step 6: Final answer
    x = 73,252.82

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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.