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Finding the Fourth Proportional to 93,403.69, 128,897.10 and 59,869.69

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Solution

The fourth proportional to 93,403.69, 128,897.10 and 59,869.69 is: 82,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,403.69 : 128,897.10 = 59,869.69 : x
  2. Step 2: Convert to fraction form
    93,403.69/128,897.10 = 59,869.69/x
  3. Step 3: Cross multiply
    93,403.69x = 128,897.10 × 59,869.69
  4. Step 4: Simplify right side
    93,403.69x = 7,717,029,096.66
  5. Step 5: Solve for x
    x = 7,717,029,096.66/93,403.69
  6. Step 6: Final answer
    x = 82,620.18

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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.