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Finding the Fourth Proportional to 93,398.63, 128,890.10 and 59,864.63

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Solution

The fourth proportional to 93,398.63, 128,890.10 and 59,864.63 is: 82,613.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,398.63 : 128,890.10 = 59,864.63 : x
  2. Step 2: Convert to fraction form
    93,398.63/128,890.10 = 59,864.63/x
  3. Step 3: Cross multiply
    93,398.63x = 128,890.10 × 59,864.63
  4. Step 4: Simplify right side
    93,398.63x = 7,715,957,652.37
  5. Step 5: Solve for x
    x = 7,715,957,652.37/93,398.63
  6. Step 6: Final answer
    x = 82,613.18

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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.