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Finding the Fourth Proportional to 573,210.72, 859,815.05 and 152,486.60

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Solution

The fourth proportional to 573,210.72, 859,815.05 and 152,486.60 is: 228,729.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,210.72 : 859,815.05 = 152,486.60 : x
  2. Step 2: Convert to fraction form
    573,210.72/859,815.05 = 152,486.60/x
  3. Step 3: Cross multiply
    573,210.72x = 859,815.05 × 152,486.60
  4. Step 4: Simplify right side
    573,210.72x = 131,110,268,541.82
  5. Step 5: Solve for x
    x = 131,110,268,541.82/573,210.72
  6. Step 6: Final answer
    x = 228,729.62

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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.