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Finding the Fourth Proportional to 255,595.36, 383,572.32 and 105,838.24

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Solution

The fourth proportional to 255,595.36, 383,572.32 and 105,838.24 is: 158,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,595.36 : 383,572.32 = 105,838.24 : x
  2. Step 2: Convert to fraction form
    255,595.36/383,572.32 = 105,838.24/x
  3. Step 3: Cross multiply
    255,595.36x = 383,572.32 × 105,838.24
  4. Step 4: Simplify right side
    255,595.36x = 40,596,619,261.52
  5. Step 5: Solve for x
    x = 40,596,619,261.52/255,595.36
  6. Step 6: Final answer
    x = 158,831.60

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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.