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Finding the Fourth Proportional to 223,525.86, 308,473.80 and 128,051.01

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Solution

The fourth proportional to 223,525.86, 308,473.80 and 128,051.01 is: 176,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,525.86 : 308,473.80 = 128,051.01 : x
  2. Step 2: Convert to fraction form
    223,525.86/308,473.80 = 128,051.01/x
  3. Step 3: Cross multiply
    223,525.86x = 308,473.80 × 128,051.01
  4. Step 4: Simplify right side
    223,525.86x = 39,500,381,888.63
  5. Step 5: Solve for x
    x = 39,500,381,888.63/223,525.86
  6. Step 6: Final answer
    x = 176,715.04

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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.