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Finding the Fourth Proportional to 58,230.40, 87,345.60 and 57,258.40

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Solution

The fourth proportional to 58,230.40, 87,345.60 and 57,258.40 is: 85,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,230.40 : 87,345.60 = 57,258.40 : x
  2. Step 2: Convert to fraction form
    58,230.40/87,345.60 = 57,258.40/x
  3. Step 3: Cross multiply
    58,230.40x = 87,345.60 × 57,258.40
  4. Step 4: Simplify right side
    58,230.40x = 5,001,269,303.04
  5. Step 5: Solve for x
    x = 5,001,269,303.04/58,230.40
  6. Step 6: Final answer
    x = 85,887.60

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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.