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Finding the Fourth Proportional to 255,423.58, 352,484.64 and 148,055.91

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Solution

The fourth proportional to 255,423.58, 352,484.64 and 148,055.91 is: 204,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,423.58 : 352,484.64 = 148,055.91 : x
  2. Step 2: Convert to fraction form
    255,423.58/352,484.64 = 148,055.91/x
  3. Step 3: Cross multiply
    255,423.58x = 352,484.64 × 148,055.91
  4. Step 4: Simplify right side
    255,423.58x = 52,187,434,136.22
  5. Step 5: Solve for x
    x = 52,187,434,136.22/255,423.58
  6. Step 6: Final answer
    x = 204,317.21

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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.