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Finding the Fourth Proportional to 94,133.34, 129,988.40 and 70,218.50

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Solution

The fourth proportional to 94,133.34, 129,988.40 and 70,218.50 is: 96,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,133.34 : 129,988.40 = 70,218.50 : x
  2. Step 2: Convert to fraction form
    94,133.34/129,988.40 = 70,218.50/x
  3. Step 3: Cross multiply
    94,133.34x = 129,988.40 × 70,218.50
  4. Step 4: Simplify right side
    94,133.34x = 9,127,589,464.37
  5. Step 5: Solve for x
    x = 9,127,589,464.37/94,133.34
  6. Step 6: Final answer
    x = 96,964.47

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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.