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Finding the Fourth Proportional to 208,125.62, 286,973.91 and 153,756.45

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Solution

The fourth proportional to 208,125.62, 286,973.91 and 153,756.45 is: 212,007.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,125.62 : 286,973.91 = 153,756.45 : x
  2. Step 2: Convert to fraction form
    208,125.62/286,973.91 = 153,756.45/x
  3. Step 3: Cross multiply
    208,125.62x = 286,973.91 × 153,756.45
  4. Step 4: Simplify right side
    208,125.62x = 44,124,089,644.22
  5. Step 5: Solve for x
    x = 44,124,089,644.22/208,125.62
  6. Step 6: Final answer
    x = 212,007.01

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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.