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Finding the Fourth Proportional to 210,695.76, 316,008.24 and 70,454.16

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Solution

The fourth proportional to 210,695.76, 316,008.24 and 70,454.16 is: 105,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,695.76 : 316,008.24 = 70,454.16 : x
  2. Step 2: Convert to fraction form
    210,695.76/316,008.24 = 70,454.16/x
  3. Step 3: Cross multiply
    210,695.76x = 316,008.24 × 70,454.16
  4. Step 4: Simplify right side
    210,695.76x = 22,264,095,102.28
  5. Step 5: Solve for x
    x = 22,264,095,102.28/210,695.76
  6. Step 6: Final answer
    x = 105,669.40

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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.