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Finding the Fourth Proportional to 93,473.54, 128,987.48 and 51,031.98

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Solution

The fourth proportional to 93,473.54, 128,987.48 and 51,031.98 is: 70,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,473.54 : 128,987.48 = 51,031.98 : x
  2. Step 2: Convert to fraction form
    93,473.54/128,987.48 = 51,031.98/x
  3. Step 3: Cross multiply
    93,473.54x = 128,987.48 × 51,031.98
  4. Step 4: Simplify right side
    93,473.54x = 6,582,486,499.61
  5. Step 5: Solve for x
    x = 6,582,486,499.61/93,473.54
  6. Step 6: Final answer
    x = 70,420.85

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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.