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Finding the Fourth Proportional to 525,677.80, 788,430.42 and 146,624.32

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Solution

The fourth proportional to 525,677.80, 788,430.42 and 146,624.32 is: 219,912.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,677.80 : 788,430.42 = 146,624.32 : x
  2. Step 2: Convert to fraction form
    525,677.80/788,430.42 = 146,624.32/x
  3. Step 3: Cross multiply
    525,677.80x = 788,430.42 × 146,624.32
  4. Step 4: Simplify right side
    525,677.80x = 115,603,074,199.81
  5. Step 5: Solve for x
    x = 115,603,074,199.81/525,677.80
  6. Step 6: Final answer
    x = 219,912.41

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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.