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Finding the Fourth Proportional to 238,803.72, 358,082.28 and 70,302.21

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Solution

The fourth proportional to 238,803.72, 358,082.28 and 70,302.21 is: 105,417.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,803.72 : 358,082.28 = 70,302.21 : x
  2. Step 2: Convert to fraction form
    238,803.72/358,082.28 = 70,302.21/x
  3. Step 3: Cross multiply
    238,803.72x = 358,082.28 × 70,302.21
  4. Step 4: Simplify right side
    238,803.72x = 25,173,975,645.84
  5. Step 5: Solve for x
    x = 25,173,975,645.84/238,803.72
  6. Step 6: Final answer
    x = 105,417.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.