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Finding the Fourth Proportional to 104,646.63, 144,411.60 and 56,900.01

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Solution

The fourth proportional to 104,646.63, 144,411.60 and 56,900.01 is: 78,521.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,646.63 : 144,411.60 = 56,900.01 : x
  2. Step 2: Convert to fraction form
    104,646.63/144,411.60 = 56,900.01/x
  3. Step 3: Cross multiply
    104,646.63x = 144,411.60 × 56,900.01
  4. Step 4: Simplify right side
    104,646.63x = 8,217,021,484.12
  5. Step 5: Solve for x
    x = 8,217,021,484.12/104,646.63
  6. Step 6: Final answer
    x = 78,521.61

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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.