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Finding the Fourth Proportional to 73,852.98, 101,913.57 and 42,018.90

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Solution

The fourth proportional to 73,852.98, 101,913.57 and 42,018.90 is: 57,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,852.98 : 101,913.57 = 42,018.90 : x
  2. Step 2: Convert to fraction form
    73,852.98/101,913.57 = 42,018.90/x
  3. Step 3: Cross multiply
    73,852.98x = 101,913.57 × 42,018.90
  4. Step 4: Simplify right side
    73,852.98x = 4,282,296,106.47
  5. Step 5: Solve for x
    x = 4,282,296,106.47/73,852.98
  6. Step 6: Final answer
    x = 57,984.07

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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.