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Finding the Fourth Proportional to 255,897.99, 353,025.05 and 148,405.77

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Solution

The fourth proportional to 255,897.99, 353,025.05 and 148,405.77 is: 204,733.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,897.99 : 353,025.05 = 148,405.77 : x
  2. Step 2: Convert to fraction form
    255,897.99/353,025.05 = 148,405.77/x
  3. Step 3: Cross multiply
    255,897.99x = 353,025.05 × 148,405.77
  4. Step 4: Simplify right side
    255,897.99x = 52,390,953,632.51
  5. Step 5: Solve for x
    x = 52,390,953,632.51/255,897.99
  6. Step 6: Final answer
    x = 204,733.74

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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.