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Finding the Fourth Proportional to 93,063.12, 128,398.14 and 52,773.72

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Solution

The fourth proportional to 93,063.12, 128,398.14 and 52,773.72 is: 72,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,063.12 : 128,398.14 = 52,773.72 : x
  2. Step 2: Convert to fraction form
    93,063.12/128,398.14 = 52,773.72/x
  3. Step 3: Cross multiply
    93,063.12x = 128,398.14 × 52,773.72
  4. Step 4: Simplify right side
    93,063.12x = 6,776,047,488.88
  5. Step 5: Solve for x
    x = 6,776,047,488.88/93,063.12
  6. Step 6: Final answer
    x = 72,811.31

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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.