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Finding the Fourth Proportional to 101,477.51, 140,045.99 and 56,157.40

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Solution

The fourth proportional to 101,477.51, 140,045.99 and 56,157.40 is: 77,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,477.51 : 140,045.99 = 56,157.40 : x
  2. Step 2: Convert to fraction form
    101,477.51/140,045.99 = 56,157.40/x
  3. Step 3: Cross multiply
    101,477.51x = 140,045.99 × 56,157.40
  4. Step 4: Simplify right side
    101,477.51x = 7,864,618,678.83
  5. Step 5: Solve for x
    x = 7,864,618,678.83/101,477.51
  6. Step 6: Final answer
    x = 77,501.10

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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.