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Finding the Fourth Proportional to 93,064.50, 128,429.08 and 52,765.38

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Solution

The fourth proportional to 93,064.50, 128,429.08 and 52,765.38 is: 72,816.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,064.50 : 128,429.08 = 52,765.38 : x
  2. Step 2: Convert to fraction form
    93,064.50/128,429.08 = 52,765.38/x
  3. Step 3: Cross multiply
    93,064.50x = 128,429.08 × 52,765.38
  4. Step 4: Simplify right side
    93,064.50x = 6,776,609,209.25
  5. Step 5: Solve for x
    x = 6,776,609,209.25/93,064.50
  6. Step 6: Final answer
    x = 72,816.26

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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.