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Finding the Fourth Proportional to 97,092.45, 133,918.58 and 64,810.80

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Solution

The fourth proportional to 97,092.45, 133,918.58 and 64,810.80 is: 89,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,092.45 : 133,918.58 = 64,810.80 : x
  2. Step 2: Convert to fraction form
    97,092.45/133,918.58 = 64,810.80/x
  3. Step 3: Cross multiply
    97,092.45x = 133,918.58 × 64,810.80
  4. Step 4: Simplify right side
    97,092.45x = 8,679,369,980.61
  5. Step 5: Solve for x
    x = 8,679,369,980.61/97,092.45
  6. Step 6: Final answer
    x = 89,392.84

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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.