Finding the Fourth Proportional to 135,412,123.01, 186,869,421.50 and 73,532,462.18
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Solution
The fourth proportional to 135,412,123.01, 186,869,421.50 and 73,532,462.18 is: 101,475,173.44
Step by Step Solution
- Step 1: Write the proportion equation
135,412,123.01 : 186,869,421.50 = 73,532,462.18 : x - Step 2: Convert to fraction form
135,412,123.01/186,869,421.50 = 73,532,462.18/x - Step 3: Cross multiply
135,412,123.01x = 186,869,421.50 × 73,532,462.18 - Step 4: Simplify right side
135,412,123.01x = 13,740,968,667,745,954 - Step 5: Solve for x
x = 13,740,968,667,745,954/135,412,123.01 - Step 6: Final answer
x = 101,475,173.44
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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.