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Finding the Fourth Proportional to 86,465.53, 119,330.31 and 52,482.72

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Solution

The fourth proportional to 86,465.53, 119,330.31 and 52,482.72 is: 72,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,465.53 : 119,330.31 = 52,482.72 : x
  2. Step 2: Convert to fraction form
    86,465.53/119,330.31 = 52,482.72/x
  3. Step 3: Cross multiply
    86,465.53x = 119,330.31 × 52,482.72
  4. Step 4: Simplify right side
    86,465.53x = 6,262,779,247.24
  5. Step 5: Solve for x
    x = 6,262,779,247.24/86,465.53
  6. Step 6: Final answer
    x = 72,430.94

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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.