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Finding the Fourth Proportional to 104,152.74, 143,730.03 and 56,404.98

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Solution

The fourth proportional to 104,152.74, 143,730.03 and 56,404.98 is: 77,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,152.74 : 143,730.03 = 56,404.98 : x
  2. Step 2: Convert to fraction form
    104,152.74/143,730.03 = 56,404.98/x
  3. Step 3: Cross multiply
    104,152.74x = 143,730.03 × 56,404.98
  4. Step 4: Simplify right side
    104,152.74x = 8,107,089,467.55
  5. Step 5: Solve for x
    x = 8,107,089,467.55/104,152.74
  6. Step 6: Final answer
    x = 77,838.47

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1.5x scale

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.