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Finding the Fourth Proportional to 69,210.30, 103,669.65 and 56,088.30

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Solution

The fourth proportional to 69,210.30, 103,669.65 and 56,088.30 is: 84,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,210.30 : 103,669.65 = 56,088.30 : x
  2. Step 2: Convert to fraction form
    69,210.30/103,669.65 = 56,088.30/x
  3. Step 3: Cross multiply
    69,210.30x = 103,669.65 × 56,088.30
  4. Step 4: Simplify right side
    69,210.30x = 5,814,654,430.10
  5. Step 5: Solve for x
    x = 5,814,654,430.10/69,210.30
  6. Step 6: Final answer
    x = 84,014.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.