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Finding the Fourth Proportional to 355,300.40, 532,950.60 and 102,580.40

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Solution

The fourth proportional to 355,300.40, 532,950.60 and 102,580.40 is: 153,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,300.40 : 532,950.60 = 102,580.40 : x
  2. Step 2: Convert to fraction form
    355,300.40/532,950.60 = 102,580.40/x
  3. Step 3: Cross multiply
    355,300.40x = 532,950.60 × 102,580.40
  4. Step 4: Simplify right side
    355,300.40x = 54,670,285,728.24
  5. Step 5: Solve for x
    x = 54,670,285,728.24/355,300.40
  6. Step 6: Final answer
    x = 153,870.60

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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.